import * as FirebaseHttps from 'firebase-functions/https';
import * as express from 'express';
import { BasePayload, FunctionTypes, InsertPayload, Operation, Payload, UpdatePayload } from './common';
export type SupabaseWebhookRequest<TBody> = Omit<FirebaseHttps.Request, 'body'> & {
    body: TBody;
};
/**
 * Validates the request by returning true/false and sends a 400 response if invalid.
 * @param req The request.
 * @param res The response we can send.
 * @param tableName The name of the table.
 * @param functionType The operation on the table to subscribe to.
 * @returns If the request is valid or not. Sends a 400 response if invalid.
 */
export declare const validateRequest: <TRecord>(req: SupabaseWebhookRequest<Payload<TRecord>>, res: express.Response, tableName: string, operation: Operation) => boolean;
type OperationPayload<TOperation extends Operation, TRecord> = TOperation extends Operation.Create ? InsertPayload<TRecord> : TOperation extends Operation.Update ? UpdatePayload<TRecord> : BasePayload<TRecord>;
/**
 * Creates a "Supabase" function which performs all of the wiring to bridge Supabase with Firebase.
 * Sends status 200 on success (if you don't send it yourself).
 * Sends status 500 on any error.
 * @param tableName The table to subscribe to.
 * @param functionType The operation to subscribe to (INSERT/UPDATE).
 * @param body The function body.
 * @param options Firebase function options like memory limit, etc.
 * @returns A Firebase HTTP function.
 */
export declare const createSupabaseFunction: <TRecord, TOperation extends Operation = Operation>(tableName: string, operation: TOperation | FunctionTypes, body: (request: SupabaseWebhookRequest<OperationPayload<TOperation, TRecord>>, response: express.Response) => void | Promise<void>, options?: FirebaseHttps.HttpsOptions, sqlCondition?: string) => FirebaseHttps.HttpsFunction;
export * from './common';